Discover a World of Innovative Comfort
Did You Know?
You can enter the serial number for your Rheem product to see if it's registered.

Maximize your savings, convenience and hot water with new Rheem® Tankless Water Heaters—and get estimated savings of up to $1,1001 (NG Condensing models only)
Load the laundry, start the dishes and still have enough hot water to enjoy a relaxing hot bath
Choose a Tankless Water Heater With Built In Recirculation Pump or add a recirculation pump kit for instant hot water at the faucet
It pumps water through the heat exchanger in an internal loop so it’s ready for back-to-back hot water needs
Tankless water heaters only produce hot water when you need it, so they save energy and money all the time
The Rheem Tankless Water Heater line makes it easy to replace a traditional tank water heater while delivering greater energy efficiency,
exceptional cost savings, water savings and long-term dependability.
Continuous Hot Water | ![]() |
Not Continuous |
Instant Hot Water | ![]() |
![]() |
Operating Costs | As low as $196/year | $293 |
Size | About the size of a carry-on suitcase | 60″H x 21″W x 21″D |
Installation Location | Indoor or Outdoor (w/available accessory) | Indoor |
Digital Display | ![]() |
![]() |
Warranty | 12 Years | 6 Years |
Water Savings | Up to 12,000 gallons | ![]() |
Recirculation | Built-in options available | Accessory Only |
Why choose a Rheem Tankless solution? Rheem Tankless Water Heaters offer the savings, comfort and protection you need.
Rheem High Efficiency Tankless Gas Water Heaters save up to $1,100 over 12 years1, and some qualify for rebates
Compact sizes and outdoor models increase valuable usable space in your home
1/2″ gas line compatibility (all models), low-cost PVC venting (High Efficiency models) and built-in condensate neutralizer3 (select High Efficiency models only) save installation time and money4
Save up to 12,000 gallons2 of water per year with a Rheem Tankless Water Heater with Built In Recirculation Pump
Exclusive Overheat Film Wrap shuts down the unit if the heat exchanger overheats for added safety in your home5
Available EcoNet® WiFi Kits send mobile maintenance reminders and detect and alert you to water leaks after shutting off water and gas to the unit (indoor models only5).
Savings
Protection
More plumbers sell Rheem Tankless Water Heaters than any other tankless brand6
Rheem Tankless Water Heaters offer many exclusive, industry-first and industry-best features
Rheem is the only manufacturer offering heating, cooling and water heating equipment, and EcoNet® helps you manage them together—with smart-home systems compatibility
Rheem has been a leader in water heating for nearly 100 years
The Rheem Difference
Click the links below to learn about tankless water heaters.
The Rheem® Combination Boiler joins the benefits of a tankless water heater with those of a hydronic boiler—all in one one space-saving unit.
The Combi delivers:
You can add EcoNet® WiFi Technology to most Rheem Tankless Gas Water Heaters produced 2010 or later, or purchase a Tankless Gas Water Heater with EcoNet Built-in to enjoy:
Ready to enjoy continuous hot water with a Rheem Tankless Water Heater?